Gremlin 2, or Gremlin 2, DAN family BMP antagonist, is a human gene encoded by GREM2. It may also be known as: Gremlin-2; Cysteine knot superfamily 1, BMP antagonist 2; DAN domain family member 3; Protein related to DAN and cerberus; CKTSF1B2; DAND3; PRDC. The encoded protein has an amino acid length of 168 and a mass of 19.3 kDa. Other isoforms may exist. Gremlin 2 is a member of the DAN family. Homologs of this gene exist in other organisms, including: Mouse, Zebrafish.